104 lines
2.0 KiB
C++
104 lines
2.0 KiB
C++
/** @defgroup Testing
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*
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* @brief Reusable unit test infrastructure.
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*
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* This module defines header-only infra for unit tests that can be used to
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* integrate tests directly where the implementation is. All you really need
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* to do then is enable a macro, include the file you're testing and compile
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* into an executable.
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*
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* @{
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*/
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/** @file unit_test.hh
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*
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* @brief The unit test infrastructure implementation.
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*
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* Include this at the very beginning in the files you want to define unit
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* tests in. It has no dependencies within libostd.
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*
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* @copyright See COPYING.md in the project tree for further information.
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*/
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#ifndef OSTD_UNIT_TEST_HH
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#define OSTD_UNIT_TEST_HH
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#ifdef OSTD_BUILD_TESTS
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#include <cstdio>
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#include <cstddef>
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#include <utility>
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#include <vector>
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#include <string>
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#include <functional>
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#include <stdexcept>
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#endif
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namespace ostd {
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namespace test {
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/** @addtogroup Testing
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* @{
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*/
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#ifdef OSTD_BUILD_TESTS
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#define OSTD_TEST_MODULE_STRINGIFY(x) #x
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#define OSTD_TEST_MODULE_STR(x) OSTD_TEST_MODULE_STRINGIFY(x)
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#define OSTD_TEST_MODULE OSTD_TEST_MODULE_STR(OSTD_BUILD_TESTS)
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static std::vector<void (*)()> test_cases;
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static bool add_test(std::string testn, void (*func)()) {
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if (testn == OSTD_TEST_MODULE) {
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test_cases.push_back(func);
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}
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return true;
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}
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#define OSTD_UNIT_TEST(module, body) \
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static bool test_case_##module##_##__LINE__ = \
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ostd::test::add_test(#module, []() { using namespace ostd::test; body });
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struct test_error {};
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void fail_if(bool b) {
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if (b) {
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throw test_error{};
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}
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}
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void fail_if_not(bool b) {
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if (!b) {
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throw test_error{};
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}
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}
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std::pair<int, int> run() {
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int succ = 0, fail = 0;
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for (auto &f: test_cases) {
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try {
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f();
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} catch (test_error) {
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++fail;
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continue;
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}
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++succ;
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}
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return std::make_pair(succ, fail);
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}
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#else /* OSTD_BUILD_TESTS */
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#define OSTD_UNIT_TEST(module, body)
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#endif /* OSTD_BUILD_TESTS */
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/** @} */
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} /* namespace test */
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} /* namespace ostd */
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#endif
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/** @} */
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